CVE-2026-40168

Postiz is affected by a Server-Side Request Forgery (SSRF) in the /api/public/stream endpoint prior to version 2.21.5. The vulnerability arises because the app validates the initially supplied URL and blocks direct private/internal hosts, but does not re-validate the final destination after HTTP ...

CVE-2026-40168: Server-Side Request Forgery (SSRF)

Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF. Although the application validates the initially supplied URL and blocks direct private/internal hosts, it does not re-validate the final destination after HTTP redirects. As a...